Software Development Engineer – Frontend
About the role
As a Frontend / Web Software Engineer you’ll be working in an agile team of industry leading engineers upon developing Tesco’s next generation of instore customer facing applications running on the tills of today and the future. Working with Product Managers, you will be responsible for the future direction of the products that we build, solving problems and developing new features through quality, scalable, performant and maintainable technical solutions. The solutions that you will be responsible for will have a global reach, impacting millions of customers.

You’ll be a passionate, pragmatic Frontend / Web Software Engineer with an inquisitive mind who is motivated to make change for the better and most importantly put our customer first. You’ll enjoy working as part of a team and be a keen problem solver. Comfortable with modern engineering practices and frontend development tooling and technologies you’ll use innovation to improve the customer experience and efficiency of engineering teams.

Some of the tech we are using at scale: ES6, React, Redux, Node, graphql, Styled-components Webpack, Cypress, Docker, Azure devops
You will be responsible for
Including, but not limited to:

• Use your in-depth knowledge of JavaScript, React, Node and the tool ecosystem to develop and implement scalable frontend systems
• Profile and optimise code
• Produce test driven features in a specific programming language and demonstrate familiarity with the TDD cycle
• Apply understanding of cohesion and the SOLID principles to create well structured, maintainable software
• Identify patterns in code and refactor the code towards them where it increases understanding and/or maintainability with minimal guidance
• Translate requirements into tasks & code
• Develop high quality code that can lead to rapid delivery, ruthlessly pursuing continuous integration and delivery - CICD
• Commit code early and often, demonstrating understanding of version control & branching strategies
• Automate everything by default
• Write secure code by default
• Write maintainable code and observe basic hygiene practices
• Implement relevant project instrumentation
• Follow the best practices of continuous BDD/TDD/Performance/Security/Smoke testing
• Work effectively with product stakeholders to communicate and translate needs into product improvements
• Lead group discussions on system design and understand domain well enough to work with Product Managers to drive value
• Support production systems, resolve incidents and perform root cause analysis
• Debug/find complex problems and support/maintain the software solution
• Share knowledge with the wider engineering community
• Mentor and develop others around you
• Produce proof of concepts to evaluate new tools

You will need
We are looking for people who have a passion for Technology. You will likely have made open source contributions and have a Github account. You will demonstrate experience of different platforms and technologies. We expect to see some or all of the following:

• 5+ Years commercial experience as a Frontend Software Developer
• Best-practices regarding all aspects of web development including design, semantic HTML mark-up, CSS, JavaScript and related technologies
• Exposure to a variety of JavaScript frameworks and libraries such as: React, Redux, Webpack React-Router and testing with React Testing Library Jest, Cypress, Jasmine, Enzyme, Mocha.
• Experience of using Node.js to create high traffic applications using Express.js, Sails, Koa or similar
• Experience in bringing multiple viewport responsive and adaptive web designs to life
• Awareness and practice of UI performance best practices
• Understanding and exposure to integrating REST API endpoints
• Strong experience and understanding of industry standard web accessibility, web design & usability; to support sites cross browser/platform/device
• A desire to write readable, maintainable, modular and extendable code
• Exposure to the DevOps model
• Experience in Lean and Agile environments and understanding of principles behind methodologies such as: BDD, ATDD and TDD
What's in it for you
We offer excellent benefits that help make Tesco a great place to work. These include but aren’t limited to:
• Annual bonus scheme where you can earn up to 3.5% of base salary
• Holiday starting at 25 days plus a personal day (plus 8 Bank holidays)
• On-site state of the art gym at our Welwyn Campus with discounted “Gympass” membership & free health checks via Nuffield Health
• Retirement savings plan - save between 4% and 7.5% and Tesco will match your contribution
• Life Assurance - 5 x contractual pay
• Share Schemes – Join our ‘Buy As You Earn’ & ‘Save As You Earn’ share schemes after 3 months service
• Colleague Clubcard (including a 2nd card for a family member) after 3 months service
• Colleague Discounts:
• 10% increasing to 15% after every pay day for a four day period, off most purchases at Tesco (from April 2020)
• 10% off One Stop
• 10% off pay monthly & SIM only deals with Tesco Mobile
• 20% off all F&F purchases
• 20% off car, pet and home insurance at Tesco bank. T&C’s apply
• 25% off Tesco Café
• 50% off complete glasses purchases & free eye tests (other offers available) at Vision Express
• 50% off health checks at Tesco Pharmacy
• An exclusive deals and discounts website saving you money on everyday purchases, treats for the family, eating out and utility bills for the home
• Cycle to work scheme
• Shuttle Bus Service to/from Hatfield & Welwyn Garden City Station to Welwyn Campus & Hatfield Offices
• Opportunities to get on - take advantage of our ongoing learning opportunities and award-winning training, to help you achieve the job and career you want
• Our Employee Assistance Programme helps you deal with life’s challenges
• Financial wellness - Tesco has partnered with experts to help you make the most of your money
• Get involved in a range of fundraising activities with our long-term charity partners
About us
• We are building systems to solve real world problems at scale, impacting tens of millions of people
• Teams of great Engineers (and Managers and Product Managers) to learn from
• We are agile and enlightened in our approach to building software and teams
• There’s a great atmosphere and we work sustainably as a team
• Tesco has a “do the right thing” mentality
• We promote flexible working

We are proud to have an inclusive culture at Tesco where everyone is welcome and truly feels able to be themselves. At Tesco, we not only celebrate diversity, but recognise the value and opportunity it brings to enable us to serve our shoppers a little better every day. We strive to create a workforce that reflects our customers not only here in the UK, but worldwide. Our aim is to attract and welcome a diverse range applicants from all walks of life, offering many varying working patterns across our business, and we would love to hear from you!

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